What powers vyberskoly.cz?
Last seen Sep 2026 · 18 technologies across 15 categories
Analytics
Google Analytics
since Jan 2021
Authentication
Facebook Login
since Jul 2021
Comment systems
Font scripts
Google Font API
since Jan 2021
JavaScript libraries
Live chat
Maps
Miscellaneous
Operating systems
Windows Server
since Jan 2021
Programming languages
UI frameworks
Bootstrap
since Jan 2021
Web frameworks
Nette Framework
since Jan 2021
Web server extensions
Web servers
Webmail
Google Workspace
since Aug 2022
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.10 / 10 · ranked #1,426,315 of all domains
22 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 6.4 MB · 40 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on MERIT-AS MERIT GROUP a.s. (195.189.0.59)
- DNS: ignum.com
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 3072, expires Nov 2026
- Common Crawl link graph: rank 24,347,346, 3 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted